docs: def image(alt_text, link_url, title=""):
      """Return an inline image.
  
      Keyword arguments:
      title -- Specify the title of the image, as seen when hovering over it.
  
      >>> image("This is an image", "https://tinyurl.com/bright-green-tree")
      '![This is an image](https://tinyurl.com/bright-green-tree)'
      >>> image("This is an image", "https://tinyurl.com/bright-green-tree", "tree")
      '![This is an image](https://tinyurl.com/bright-green-tree) "tree"'
      """
      image_string = "![" + esc_format(alt_text) + "](" + link_url + ")"
      if title:
          image_string += ' "' + esc_format(title) + '"'
      return image_string